Other Balance Sheet Items (Components Of Accounts Payable And Accrued Liabilities) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Balance Sheet Related Disclosures [Abstract]
Accounts payable	$ 23,519	$ 19,283
Accrued employee compensation	38,778	40,251
Customer deposits, net	19,321	18,558
Taxes payable and other tax liabilities	21,918	28,441
Accrued restructuring costs	0	8,685
Other accrued liabilities	26,855	41,167
Total accounts payable and accrued liabilities	$ 130,391	$ 156,385